[2] | 1 | ; $Id$ |
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| 2 | ; |
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| 3 | ; Copyright (c) 1992-1998, Research Systems, Inc. All rights reserved. |
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| 4 | ; Unauthorized reproduction prohibited. |
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| 5 | ;+ |
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| 6 | ; NAME: |
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| 7 | ; XPAL |
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| 8 | ; |
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| 9 | ; PURPOSE: |
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| 10 | ; comme xpalette mais plus court a ecrire et possede en plus |
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| 11 | ; une touche save qui (grace a la routine newpalette) permet de |
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| 12 | ; sauver la routine que l''on vient de faire. Rq qd on appuie |
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| 13 | ; sur la touche predefined appelle xlct plutot que xloadct |
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| 14 | ; |
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| 15 | ; CATEGORY: |
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| 16 | ; Color tables, widgets. |
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| 17 | ; |
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| 18 | ; CALLING SEQUENCE: |
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| 19 | ; XPAL |
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| 20 | ; |
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| 21 | ; INPUTS: |
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| 22 | ; No explicit inputs. The current color table is used as a starting |
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| 23 | ; point. |
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| 24 | ; |
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| 25 | ; KEYWORD PARAMETERS: |
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| 26 | ; BLOCK: Set this keyword to have XMANAGER block when this |
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| 27 | ; application is registered. By default the Xmanager |
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| 28 | ; keyword NO_BLOCK is set to 1 to provide access to the |
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| 29 | ; command line if active command line processing is available. |
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| 30 | ; Note that setting BLOCK for this application will cause |
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| 31 | ; all widget applications to block, not only this |
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| 32 | ; application. For more information see the NO_BLOCK keyword |
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| 33 | ; to XMANAGER. |
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| 34 | ; UPDATECALLBACK: Set this keyword to a string containing the name of |
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| 35 | ; a user-supplied procedure that will be called when the color |
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| 36 | ; table is updated by XLOADCT. The procedure may optionally |
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| 37 | ; accept a keyword called DATA, which will be automatically |
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| 38 | ; set to the value specified by the optional UPDATECBDATA |
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| 39 | ; keyword. |
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| 40 | ; UPDATECBDATA: Set this keyword to a value of any type. It will be |
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| 41 | ; passed via the DATA keyword to the user-supplied procedure |
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| 42 | ; specified via the UPDATECALLBACK keyword, if any. If the |
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| 43 | ; UPDATECBDATA keyword is not set the value accepted by the |
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| 44 | ; DATA keyword to the procedure specified by UPDATECALLBACK |
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| 45 | ; will be undefined. |
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| 46 | ; |
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| 47 | ; OUTPUTS: |
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| 48 | ; None. |
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| 49 | ; |
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| 50 | ; COMMON BLOCKS: |
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| 51 | ; COLORS: Contains the current RGB color tables. |
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| 52 | ; XP_COM: Private to this module. |
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| 53 | ; |
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| 54 | ; SIDE EFFECTS: |
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| 55 | ; XPAL uses two colors from the current color table as |
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| 56 | ; drawing foreground and background colors. These are used |
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| 57 | ; for the RGB plots on the left, and the current index marker on |
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| 58 | ; the right. This means that if the user set these two colors |
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| 59 | ; to the same value, the XPAL display could become unreadable |
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| 60 | ; (like writing on black paper with black ink). XPAL minimizes |
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| 61 | ; this possibility by noting changes to the color map and always |
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| 62 | ; using the brightest available color for the foreground color |
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| 63 | ; and the darkest for the background. Thus, the only way |
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| 64 | ; to make XPAL's display unreadable is to set the entire color |
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| 65 | ; map to a single color, which is highly unlikely. The only side |
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| 66 | ; effect of this policy is that you may notice XPAL redrawing |
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| 67 | ; the entire display after you've modified the current color. |
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| 68 | ; This simply means that the change has made XPAL pick new |
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| 69 | ; drawing colors. |
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| 70 | ; |
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| 71 | ; The new color tables are saved in the COLORS common and loaded |
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| 72 | ; to the display. |
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| 73 | ; |
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| 74 | ; PROCEDURE: |
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| 75 | ; The XPAL widget has the following controls: |
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| 76 | ; |
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| 77 | ; Left: Three plots showing the current Red, Green, and Blue vectors. |
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| 78 | ; |
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| 79 | ; Center: A status region containing: |
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| 80 | ; 1) The total number of colors. |
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| 81 | ; 2) The current color. XPAL allows changing |
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| 82 | ; one color at a time. This color is known as |
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| 83 | ; the "current color" and is indicated in the |
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| 84 | ; color spectrum display with a special marker. |
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| 85 | ; 3) The current mark index. The mark is used to |
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| 86 | ; remember a color index. It is established by |
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| 87 | ; pressing the "Set Mark Button" while the current |
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| 88 | ; color index is the desired mark index. |
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| 89 | ; 4) The current color. The special marker used in |
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| 90 | ; color spectrum display prevents the user from seeing |
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| 91 | ; the color of the current index, but it is visible |
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| 92 | ; here. |
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| 93 | ; |
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| 94 | ; A panel of control buttons, which do the following when |
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| 95 | ; pressed: |
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| 96 | ; |
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| 97 | ; Done: Exits XPAL. |
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| 98 | ; |
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| 99 | ; Predefined: Starts XLOADCT to allow selection of one of the |
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| 100 | ; predefined color tables. |
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| 101 | ; |
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| 102 | ; Help: Supplies help information similar to this header. |
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| 103 | ; |
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| 104 | ; Redraw: Completely redraws the display using the current |
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| 105 | ; state of the color map. |
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| 106 | ; |
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| 107 | ; Set Mark: Set the value of the mark index to the |
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| 108 | ; current index. |
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| 109 | ; |
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| 110 | ; Switch Mark: Exchange the mark and the current index. |
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| 111 | ; |
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| 112 | ; Copy Current: Every color lying between the current |
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| 113 | ; index and the mark index (inclusive) is given |
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| 114 | ; the current color. |
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| 115 | ; |
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| 116 | ; Interpolate: The colors lying between the current |
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| 117 | ; index and the mark index are interpolated linearly |
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| 118 | ; to lie between the colors of two endpoints. |
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| 119 | ; save: permet de sauver la palette qui est |
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| 120 | ; actuellement a l''ecran. Qd on appuie sur ce |
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| 121 | ; bouton, un widget apparait qui demande: |
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| 122 | ; 1) le nom a donner a la palette que l''on veut sauver |
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| 123 | ; 2) le numero de la palette que l''on veut |
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| 124 | ; eventuellement ecrase par la nouvelle |
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| 125 | ; palette.Si aucun numero n''est specifie la |
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| 126 | ; nouvelle palette estajoutee aux anciennes. |
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| 127 | ; 3) le nom du fichier qui contient les |
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| 128 | ; palettes. Rq: suivre eventuellement les |
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| 129 | ; indications fournis au prompteur. |
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| 130 | ; |
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| 131 | ; |
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| 132 | ; Three sliders (R, G, and B) that allow the user to modify the |
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| 133 | ; current color. |
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| 134 | ; |
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| 135 | ; Right: A display which shows the current color map as a series of |
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| 136 | ; squares. Color index 0 is at the upper left. The color index |
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| 137 | ; increases monotonically by rows going left to right and top |
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| 138 | ; to bottom. The current color index is indicated by a special |
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| 139 | ; marker symbol. There are 4 ways to change the current color: |
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| 140 | ; 1) Press any mouse button while the mouse |
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| 141 | ; pointer is over the color map display. |
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| 142 | ; 2) Use the "By Index" slider to move to |
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| 143 | ; the desired color index. |
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| 144 | ; 3) Use the "Row" Slider to move the marker |
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| 145 | ; vertically. |
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| 146 | ; 4) Use the "Column" Slider to move the marker |
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| 147 | ; horizontally. |
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| 148 | ; |
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| 149 | ; MODIFICATION HISTORY: |
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| 150 | ; addaptation de xpalette pour ajouter un bouton save par |
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| 151 | ; Gima Nicolas (nglod@ipsl.jussieu.fr) et par Masson |
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| 152 | ; Sebastien (smlod@ipsl.jussieu.fr) |
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| 153 | ;- |
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| 154 | |
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| 155 | function XP_NEW_COLORS |
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| 156 | ; Choose the best foreground and background colors for the current |
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| 157 | ; color maps and set !P appropriately. Returns 1 if the colors changed, |
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| 158 | ; 0 otherwise. |
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[114] | 159 | ; |
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| 160 | compile_opt idl2, strictarrsubs |
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| 161 | ; |
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[2] | 162 | common xp_com, xpw, state |
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| 163 | |
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| 164 | res = 0 |
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| 165 | junk = CT_LUMINANCE(dark=dark_col, bright=bright_col) |
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| 166 | |
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| 167 | if (bright_col ne !p.color) then begin |
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| 168 | !p.color = bright_col |
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| 169 | res = 1 |
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| 170 | endif |
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| 171 | |
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| 172 | if (dark_col ne !p.background) then begin |
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| 173 | !p.background = dark_col |
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| 174 | res = 1 |
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| 175 | endif |
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| 176 | |
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| 177 | return, res |
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| 178 | end |
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| 179 | |
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| 180 | pro XP_ALERT_CALLER |
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[114] | 181 | ; |
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| 182 | compile_opt idl2, strictarrsubs |
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| 183 | ; |
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[2] | 184 | |
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| 185 | common xp_com, xpw, state |
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| 186 | |
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| 187 | ErrorStatus = 0 |
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| 188 | CATCH, ErrorStatus |
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| 189 | if (ErrorStatus NE 0) then begin |
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| 190 | CATCH, /CANCEL |
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| 191 | v = DIALOG_MESSAGE(['Unexpected error in XPAL:', $ |
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| 192 | '!ERR_STRING = ' + !ERR_STRING], $ |
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| 193 | /ERROR) |
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| 194 | return |
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| 195 | endif |
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| 196 | if (STRLEN(state.updt_callback) gt 0) then begin |
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| 197 | if (PTR_VALID(state.p_updt_cb_data)) then begin |
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| 198 | CALL_PROCEDURE, state.updt_callback, DATA=*(state.p_updt_cb_data) |
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| 199 | endif else begin |
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| 200 | CALL_PROCEDURE, state.updt_callback |
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| 201 | endelse |
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| 202 | endif |
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| 203 | end |
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| 204 | |
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| 205 | pro XP_XLCTCALLBACK |
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| 206 | ; For visuals with static colormaps, update the graphics |
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| 207 | ; after a change by XLOADCT. |
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[114] | 208 | ; |
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| 209 | compile_opt idl2, strictarrsubs |
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| 210 | ; |
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[2] | 211 | if ((COLORMAP_APPLICABLE(redrawRequired) GT 0) and $ |
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| 212 | (redrawRequired GT 0)) then begin |
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| 213 | XP_REDRAW |
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| 214 | endif |
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| 215 | |
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| 216 | end |
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| 217 | |
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| 218 | pro XP_REDRAW |
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[114] | 219 | ; |
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| 220 | compile_opt idl2, strictarrsubs |
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| 221 | ; |
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[2] | 222 | |
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| 223 | common xp_com, xpw, state |
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| 224 | |
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| 225 | junk = XP_NEW_COLORS() |
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| 226 | WIDGET_CONTROL, xpw.colorsel, set_value=-1 |
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| 227 | XP_REPLOT, !p.color, 'F' ; Update the plots of RGB |
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| 228 | ; Let the caller of XPAL know that the color table was modified |
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| 229 | XP_ALERT_CALLER |
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| 230 | end |
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| 231 | |
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| 232 | |
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| 233 | |
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| 234 | pro XP_REPLOT, color_index, type |
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| 235 | ; Re-draw the RGB plots. Type has the following possible values. |
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| 236 | ;; - 'D': Draw the data part of all three plots |
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| 237 | ; - 'F': draw all three plots |
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| 238 | ; - 'R': Draw the data part of the Red plot |
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| 239 | ; - 'G': Draw the data part of the Green plot |
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| 240 | ; - 'B': Draw the data part of the Blue plot |
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[114] | 241 | ; |
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| 242 | compile_opt idl2, strictarrsubs |
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| 243 | ; |
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[2] | 244 | |
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| 245 | common xp_com, xpw, state |
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| 246 | common colors, r_orig, g_orig, b_orig, r_curr, g_curr, b_curr |
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| 247 | common pscale, r_x_s, r_y_s, g_x_s, g_y_s, b_x_s, b_y_s |
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| 248 | |
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| 249 | ; Update the plots of RGB |
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| 250 | save_win = !D.WINDOW |
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| 251 | wset, state.plot_win |
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| 252 | save_p_region = !p.region |
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| 253 | save_x_margin = !x.margin |
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| 254 | save_y_margin = !y.margin |
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| 255 | save_x_s = !x.s |
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| 256 | save_y_s = !y.s |
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| 257 | save_x_type = !x.type |
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| 258 | save_y_type = !y.type |
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| 259 | |
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| 260 | !y.margin= [2, 2] |
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| 261 | !x.margin= [6, 2] |
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| 262 | |
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| 263 | if (type eq 'F') then begin |
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| 264 | !p.region = [0,.6667, 1, 1] |
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| 265 | plot,xstyle=2, ystyle=3, yrange=[0, 260], r_curr, title='Red' |
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| 266 | r_x_s = !x.s |
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| 267 | r_y_s = !y.s |
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| 268 | |
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| 269 | !p.region = [0,.333, 1, .6667] |
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| 270 | plot,/noerase, xstyle=2,ystyle=3, yrange=[0, 260], g_curr, title='Green' |
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| 271 | g_x_s = !x.s |
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| 272 | g_y_s = !y.s |
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| 273 | |
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| 274 | !p.region = [0,0, 1, .333] |
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| 275 | plot,/noerase, xstyle=2,ystyle=3, yrange=[0, 260], b_curr, title='Blue' |
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| 276 | |
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| 277 | b_x_s = !x.s |
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| 278 | b_y_s = !y.s |
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| 279 | endif else begin |
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| 280 | if ((type eq 'D') or (type eq 'R')) then begin |
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| 281 | !p.region = [0,.6667, 1, 1] |
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| 282 | !x.s = r_x_s |
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| 283 | !y.s = r_y_s |
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| 284 | oplot, r_curr, color=color_index |
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| 285 | endif |
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| 286 | if ((type eq 'D') or (type eq 'G')) then begin |
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| 287 | !p.region = [0,.333, 1, .6667] |
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| 288 | !x.s = g_x_s |
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| 289 | !y.s = g_y_s |
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| 290 | oplot, g_curr, color=color_index |
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| 291 | endif |
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| 292 | if ((type eq 'D') or (type eq 'B')) then begin |
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| 293 | !p.region = [0,0, 1, .333] |
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| 294 | !x.s = b_x_s |
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| 295 | !y.s = b_y_s |
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| 296 | oplot, b_curr, color=color_index |
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| 297 | endif |
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| 298 | endelse |
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| 299 | |
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| 300 | empty |
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| 301 | WSET, save_win |
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| 302 | !p.region = save_p_region |
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| 303 | !x.margin = save_x_margin |
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| 304 | !y.margin = save_y_margin |
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| 305 | !x.s = save_x_s |
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| 306 | !y.s = save_y_s |
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| 307 | !x.type = save_x_type |
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| 308 | !y.type = save_y_type |
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| 309 | |
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| 310 | end |
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| 311 | |
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| 312 | |
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| 313 | |
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| 314 | |
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| 315 | pro XP_CHANGE_COLOR, type, value |
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| 316 | ; Change current color. Type has the following possible values. |
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| 317 | ; - 'R': Change the R part of the current color |
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| 318 | ; - 'G': ... |
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| 319 | ; - 'B': ... |
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[114] | 320 | ; |
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| 321 | compile_opt idl2, strictarrsubs |
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| 322 | ; |
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[2] | 323 | common xp_com, xpw, state |
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| 324 | common colors, r_orig, g_orig, b_orig, r_curr, g_curr, b_curr |
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| 325 | |
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| 326 | |
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| 327 | cur_idx = state.cur_idx |
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| 328 | |
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| 329 | XP_REPLOT, !p.background, type |
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| 330 | |
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| 331 | if (type eq 'R') then r_curr[cur_idx] = value; |
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| 332 | if (type eq 'G') then g_curr[cur_idx] = value; |
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| 333 | if (type eq 'B') then b_curr[cur_idx] = value; |
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| 334 | |
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| 335 | tvlct, r_curr[cur_idx], g_curr[cur_idx], b_curr[cur_idx], cur_idx |
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| 336 | |
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| 337 | if (XP_NEW_COLORS()) then begin |
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| 338 | ; Highlight the current position using the marker |
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| 339 | WIDGET_CONTROL, xpw.colorsel, set_value=-1 ; Re-initialize |
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| 340 | XP_REPLOT, !p.color, 'F' |
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| 341 | endif else begin |
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| 342 | XP_REPLOT, !p.color, type |
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| 343 | endelse |
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| 344 | |
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| 345 | ; For visuals with static colormaps, update the graphics |
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| 346 | ; of the current color. |
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| 347 | if ((COLORMAP_APPLICABLE(redrawRequired) GT 0) and $ |
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| 348 | (redrawRequired GT 0)) then begin |
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| 349 | ; Mark new square |
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| 350 | tmp = !D.WINDOW |
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| 351 | wset, state.cur_color_win |
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| 352 | erase, color=state.cur_idx |
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| 353 | wset, tmp |
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| 354 | endif |
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| 355 | |
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| 356 | ; Let the caller of XPAL know that the color table was modified |
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| 357 | xp_alert_caller |
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| 358 | |
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| 359 | end |
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| 360 | |
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| 361 | |
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| 362 | |
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| 363 | |
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| 364 | |
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| 365 | |
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| 366 | |
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| 367 | pro XP_BUTTON_EVENT, event |
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[114] | 368 | ; |
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| 369 | compile_opt idl2, strictarrsubs |
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| 370 | ; |
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[2] | 371 | |
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| 372 | common xp_com, xpw, state |
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| 373 | common colors, r_orig, g_orig, b_orig, r_curr, g_curr, b_curr |
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| 374 | |
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| 375 | ; NOTE: The value of these tags depend on the order of the buttons |
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| 376 | ; in the base. |
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| 377 | case (event.value) of |
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| 378 | |
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| 379 | ; DONE |
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| 380 | 0: begin |
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| 381 | empty |
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| 382 | r_orig = r_curr & g_orig = g_curr & b_orig = b_curr ;new orig color tbl |
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| 383 | WIDGET_CONTROL, /DESTROY, event.top |
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| 384 | !p = state.old_p |
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| 385 | end |
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| 386 | |
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| 387 | ; PREDEFINED |
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| 388 | 1: xlct, /silent, group=xpw.base, UPDATECALLBACK='XP_XLCTCALLBACK' |
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| 389 | |
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| 390 | ; HELP |
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| 391 | 2: XDisplayFile, FILEPATH("xpal.txt", subdir=['help', 'widget']), $ |
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| 392 | TITLE = "Xpal Help", GROUP = event.top, WIDTH = 55, HEIGHT = 16 |
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| 393 | |
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| 394 | ; REDRAW |
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| 395 | 3: XP_REDRAW |
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| 396 | |
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| 397 | ; SET MARK |
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| 398 | 4: begin |
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| 399 | state.mark_idx = state.cur_idx |
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| 400 | WIDGET_CONTROL, xpw.mark_label, $ |
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| 401 | set_value=strcompress(state.mark_idx, /REMOVE) |
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| 402 | end |
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| 403 | |
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| 404 | ; SWITCH MARK |
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| 405 | 5 : if (state.mark_idx ne state.cur_idx) then begin |
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| 406 | tmp = state.mark_idx |
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| 407 | state.mark_idx = state.cur_idx |
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| 408 | state.cur_idx = tmp |
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| 409 | WIDGET_CONTROL, xpw.colorsel, set_value=tmp |
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| 410 | WIDGET_CONTROL, xpw.idx_label, $ |
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| 411 | set_value=strcompress(state.cur_idx, /REMOVE) |
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| 412 | WIDGET_CONTROL, xpw.mark_label, $ |
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| 413 | set_value=strcompress(state.mark_idx, /REMOVE) |
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| 414 | endif |
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| 415 | |
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| 416 | ; COPY CURRENT |
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| 417 | 6 : begin |
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| 418 | do_copy: |
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| 419 | cur_idx = state.cur_idx |
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| 420 | if (state.mark_idx le cur_idx) then begin |
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| 421 | s = state.mark_idx |
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| 422 | e = cur_idx |
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| 423 | endif else begin |
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| 424 | s = cur_idx |
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| 425 | e = state.mark_idx |
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| 426 | endelse |
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| 427 | n = e-s+1 |
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| 428 | XP_REPLOT, !p.background, 'D' |
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| 429 | if (event.value eq 6) then begin |
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| 430 | r_curr[s:e] = r_curr[cur_idx] |
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| 431 | g_curr[s:e] = g_curr[cur_idx] |
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| 432 | b_curr[s:e] = b_curr[cur_idx] |
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| 433 | endif else begin ; Interpolate |
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| 434 | scale = findgen(n)/float(n-1) |
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| 435 | r_curr[s:e] = r_curr[s] + (fix(r_curr[e]) - fix(r_curr[s])) * scale |
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| 436 | g_curr[s:e] = g_curr[s] + (fix(g_curr[e]) - fix(g_curr[s])) * scale |
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| 437 | b_curr[s:e] = b_curr[s] + (fix(b_curr[e]) - fix(b_curr[s])) * scale |
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| 438 | endelse |
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| 439 | tvlct, r_curr[s:e], g_curr[s:e], b_curr[s:e], s |
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| 440 | if (XP_NEW_COLORS()) then begin |
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| 441 | WIDGET_CONTROL, xpw.colorsel, SET_VALUE=-1 |
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| 442 | XP_REPLOT, !p.color, 'F' |
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| 443 | endif else begin |
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| 444 | XP_REPLOT, !p.color, 'D' |
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| 445 | endelse |
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| 446 | ; Let the caller of XPAL know that the color table was modified |
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| 447 | xp_alert_caller |
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| 448 | end |
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| 449 | |
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| 450 | 7: goto, do_copy |
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| 451 | 8: BEGIN |
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| 452 | COMMON basecommon, bas212, bas222, bas232 |
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| 453 | base = WIDGET_BASE(/COLUMN, /FRAME) |
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| 454 | bas1 = WIDGET_LABEL(base, value = 'Save') |
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| 455 | bas2 = WIDGET_BASE(base, /COLUMN) |
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| 456 | bas21 = WIDGET_BASE(bas2, /COLUMN) |
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| 457 | bas211 = WIDGET_LABEL(bas21, value = 'Palette Name : ') |
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| 458 | bas212 = WIDGET_TEXT(bas21, value = 'Noname', /editable) |
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| 459 | bas22 = WIDGET_BASE(bas2, /COLUMN) |
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| 460 | bas221 = WIDGET_LABEL(bas22, value = ' Overwrite palette number : ') |
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| 461 | bas222 = WIDGET_TEXT(bas22, value = '', /editable) |
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| 462 | bas23 = WIDGET_BASE(bas2, /COLUMN) |
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| 463 | bas231 = WIDGET_LABEL(bas23, value = 'file name : ') |
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| 464 | bas232 = WIDGET_TEXT(bas23, value = 'palette.tbl', /editable) |
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| 465 | bas3 = WIDGET_BASE(base, /ROW) |
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| 466 | ok = WIDGET_BUTTON(bas3, value = 'OK',$ |
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| 467 | /ALIGN_LEFT, /FRAME, UVALUE = 'ok') |
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| 468 | cancel = WIDGET_BUTTON(bas3, value = 'CANCEL',$ |
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| 469 | /ALIGN_RIGHT, /FRAME, UVALUE = 'cancel') |
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| 470 | WIDGET_CONTROL, base, /REALIZE |
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| 471 | ; WIDGET_CONTROL, base, SET_UVALUE = drawID |
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| 472 | XMANAGER, 'xp_button_event', base |
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| 473 | |
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| 474 | |
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| 475 | |
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| 476 | END |
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| 477 | else: |
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| 478 | endcase |
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| 479 | |
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| 480 | end |
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| 481 | |
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| 482 | |
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| 483 | PRO xp_button_event_event, ev |
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[114] | 484 | ; |
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| 485 | compile_opt idl2, strictarrsubs |
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| 486 | ; |
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[2] | 487 | COMMON basecommon, bas212, bas222, bas232 |
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| 488 | WIDGET_CONTROL, ev.id, GET_UVALUE = uval |
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| 489 | IF(TAG_NAMES(ev, /STRUCTURE_NAME) EQ 'WIDGET_BUTTON')$ |
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| 490 | THEN BEGIN |
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| 491 | CASE uval OF |
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| 492 | 'ok' :BEGIN |
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| 493 | WIDGET_CONTROL, bas212, GET_VALUE = palname |
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| 494 | WIDGET_CONTROL, bas222, GET_VALUE = over |
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| 495 | WIDGET_CONTROL, bas232, GET_VALUE = fichname |
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| 496 | if over[0] EQ '' then over = 255 ELSE over = long(over) |
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| 497 | newpalette,palname[0], OVER = over[0], file = fichname[0] |
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| 498 | WIDGET_CONTROL, ev.top, /DESTROY |
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| 499 | END |
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| 500 | 'cancel': WIDGET_CONTROL, ev.top, /DESTROY |
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| 501 | ENDCASE |
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| 502 | ENDIF |
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| 503 | |
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| 504 | END |
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| 505 | |
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| 506 | |
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| 507 | |
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| 508 | |
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| 509 | |
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| 510 | pro XP_EVENT, event |
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[114] | 511 | ; |
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| 512 | compile_opt idl2, strictarrsubs |
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| 513 | ; |
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[2] | 514 | |
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| 515 | common xp_com, xpw, state |
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| 516 | common colors, r_orig, g_orig, b_orig, r_curr, g_curr, b_curr |
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| 517 | |
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| 518 | case (event.id) of |
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| 519 | |
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| 520 | xpw.button_base: XP_BUTTON_EVENT, event |
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| 521 | |
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| 522 | xpw.rgb_base: begin |
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| 523 | cur_idx = state.cur_idx |
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| 524 | if (event.r ne r_curr[cur_idx]) then XP_CHANGE_COLOR, "R", event.r |
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| 525 | if (event.g ne g_curr[cur_idx]) then XP_CHANGE_COLOR, "G", event.g |
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| 526 | if (event.b ne b_curr[cur_idx]) then XP_CHANGE_COLOR, "B", event.b |
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| 527 | end |
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| 528 | |
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| 529 | xpw.colorsel: begin |
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| 530 | cur_idx = state.cur_idx |
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| 531 | new_pos = event.value ne cur_idx |
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| 532 | ; Update the RBG sliders |
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| 533 | if (event.value ne cur_idx) then begin |
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| 534 | state.cur_idx = (cur_idx = event.value) |
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| 535 | WIDGET_CONTROL, xpw.idx_label, $ |
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| 536 | set_value=strcompress(cur_idx, /REMOVE_ALL) |
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| 537 | ; Mark new square |
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| 538 | tmp = !D.WINDOW |
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| 539 | wset, state.cur_color_win |
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| 540 | erase, color=cur_idx |
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| 541 | wset, tmp |
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| 542 | |
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| 543 | WIDGET_CONTROL, xpw.rgb_base, $ |
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| 544 | set_value=[r_curr[cur_idx], g_curr[cur_idx], b_curr[cur_idx]] |
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| 545 | endif |
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| 546 | end |
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| 547 | |
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| 548 | else: |
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| 549 | endcase |
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| 550 | |
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| 551 | end |
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| 552 | |
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| 553 | |
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| 554 | |
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| 555 | |
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| 556 | |
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| 557 | |
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| 558 | |
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| 559 | pro XPAL, group=group, BLOCK=block, UPDATECALLBACK=updt_cb_name, $ |
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| 560 | UPDATECBDATA=updt_cb_data |
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[114] | 561 | ; |
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| 562 | compile_opt idl2, strictarrsubs |
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| 563 | ; |
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[2] | 564 | |
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| 565 | |
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| 566 | common xp_com, xpw, state |
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| 567 | common colors, r_orig, g_orig, b_orig, r_curr, g_curr, b_curr |
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| 568 | |
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| 569 | IF N_ELEMENTS(updt_cb_name) EQ 0 THEN updt_callback="" $ |
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| 570 | ELSE updt_callback=updt_cb_name |
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| 571 | IF N_ELEMENTS(updt_cb_data) GT 0 THEN p_updt_cb_data=PTR_NEW(updt_cb_data) $ |
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| 572 | ELSE p_updt_cb_data=PTR_NEW() |
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| 573 | |
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| 574 | xpw = { xp_widgets, base:0L, $ |
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| 575 | colorsel:0L, mark_label:0L, idx_label:0L, button_base:0L, rgb_base:0L} |
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| 576 | |
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| 577 | state = {old_p:!p, $ ; Original value of !P |
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| 578 | mark_idx:0, $ ; Current mark index |
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| 579 | cur_idx:0, $ ; Current index |
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| 580 | cur_color_win:0, $ ; Current Color draw window index |
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| 581 | plot_win:0, $ ; RGB plot draw window index |
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| 582 | updt_callback: updt_callback, $ ; user-defined callback (optional) |
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| 583 | p_updt_cb_data:p_updt_cb_data} ; data for callback (optional) |
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| 584 | |
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| 585 | if (XREGISTERED('XPAL')) then return ; Only one copy at a time |
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| 586 | |
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| 587 | IF N_ELEMENTS(block) EQ 0 THEN block=0 |
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| 588 | |
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| 589 | on_error,2 ;Return to caller if an error occurs |
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| 590 | |
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| 591 | nc = !d.table_size ;# of colors avail |
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| 592 | if nc eq 0 then message, "Device has static color tables. Can't modify." |
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| 593 | if (nc eq 2) then message, 'Unable to work with monochrome system.' |
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| 594 | |
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| 595 | state.old_p = !p ;Save !p |
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| 596 | !p.noclip = 1 ;No clipping |
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| 597 | !p.color = nc -1 ;Foreground color |
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| 598 | !p.font = 0 ;Hdw font |
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| 599 | save_win = !d.window ;Previous window |
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| 600 | |
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| 601 | IF N_ELEMENTS(r_orig) LE 0 THEN BEGIN ;If no common, use current colors |
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| 602 | TVLCT, r_orig, g_orig, b_orig, /GET |
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| 603 | r_curr = r_orig |
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| 604 | b_curr = b_orig |
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| 605 | g_curr = g_orig |
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| 606 | ENDIF |
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| 607 | |
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| 608 | ; Create widgets |
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| 609 | xpw.base=WIDGET_BASE(title='Xpal', /ROW, space=30) |
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| 610 | ; This is a little tricky. Setting the managed attribute indicates |
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| 611 | ; our intention to put this app under the control of XMANAGER, and |
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| 612 | ; prevents our draw widgets from becoming candidates for becoming |
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| 613 | ; the default window on WSET, -1. XMANAGER sets this, but doing it here |
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| 614 | ; prevents our own WSETs at startup from having that problem. |
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| 615 | WIDGET_CONTROL, /MANAGED, xpw.base |
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| 616 | |
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| 617 | version = WIDGET_INFO(/VERSION) |
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| 618 | if (version.style='Motif') then junk=510 else junk = 580 |
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| 619 | plot_frame = WIDGET_DRAW(xpw.base, xsize=200, ysize=junk) |
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| 620 | |
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| 621 | c1 = WIDGET_BASE(xpw.base, /COLUMN, space=20) |
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| 622 | status = WIDGET_BASE(c1, /COLUMN, /FRAME) |
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| 623 | ncw = WIDGET_LABEL(WIDGET_BASE(status), /DYNAMIC_RESIZE) |
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| 624 | xpw.idx_label = CW_FIELD(status, title='Current Index: ', value='0', $ |
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| 625 | xsize=20, /STRING) |
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| 626 | xpw.mark_label = CW_FIELD(status, title='Mark Index: ', value='0', $ |
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| 627 | xsize=20, /STRING) |
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| 628 | c1_1 = widget_base(status, /ROW) |
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| 629 | junk = WIDGET_LABEL(c1_1, value="Current Color: ") |
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| 630 | cur_color = WIDGET_DRAW(c1_1, xsize = 125, ysize=50, /frame) |
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| 631 | names = [ 'Done', 'Predefined', 'Help', 'Redraw', 'Set Mark', $ |
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| 632 | 'Switch Mark', 'Copy Current', 'Interpolate', 'save'] |
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| 633 | xpw.button_base = CW_BGROUP(c1, names, COLUMN=3, /FRAME) |
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| 634 | xpw.rgb_base = CW_RGBSLIDER(c1, /FRAME, /DRAG) |
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| 635 | |
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| 636 | junk = WIDGET_BASE(xpw.base) ; Responds to YOFFSET |
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| 637 | if (version.style='Motif') then junk2=30 else junk2 = 50 |
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| 638 | xpw.colorsel = CW_COLORSEL(junk, yoffset=junk2) |
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| 639 | |
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| 640 | |
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| 641 | state.cur_idx = 0 |
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| 642 | state.mark_idx = 0 |
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| 643 | |
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| 644 | ; Position RGB slider appropriately |
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| 645 | WIDGET_CONTROL, xpw.rgb_base, SET_VALUE=[r_curr[0], g_curr[0], b_curr[0]] |
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| 646 | WIDGET_CONTROL, /REALIZE, xpw.base |
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| 647 | |
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| 648 | WIDGET_CONTROL, ncw, $ |
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| 649 | set_value='Number Of Colors: ' + strcompress(!d.n_colors, /REMOVE_ALL) |
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| 650 | WIDGET_CONTROL, get_value=tmp, cur_color |
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| 651 | state.cur_color_win = tmp |
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| 652 | WIDGET_CONTROL, get_value=tmp, plot_frame |
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| 653 | state.plot_win = tmp |
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| 654 | |
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| 655 | |
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| 656 | ; Update the plots of RGB |
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| 657 | junk = XP_NEW_COLORS() |
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| 658 | XP_REPLOT, !p.color, 'F' |
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| 659 | |
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| 660 | WSET, save_win |
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| 661 | |
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| 662 | XMANAGER, 'Xpal', xpw.base, event_handler='XP_EVENT', group=group, $ |
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| 663 | NO_BLOCK=(NOT(FLOAT(block))) |
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| 664 | end |
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| 665 | |
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