diff options
Diffstat (limited to 'tkblt/generic/tkbltGrLegd.C')
| -rw-r--r-- | tkblt/generic/tkbltGrLegd.C | 1070 |
1 files changed, 0 insertions, 1070 deletions
diff --git a/tkblt/generic/tkbltGrLegd.C b/tkblt/generic/tkbltGrLegd.C deleted file mode 100644 index b8822f1..0000000 --- a/tkblt/generic/tkbltGrLegd.C +++ /dev/null @@ -1,1070 +0,0 @@ -/* - * Smithsonian Astrophysical Observatory, Cambridge, MA, USA - * This code has been modified under the terms listed below and is made - * available under the same terms. - */ - -/* - * Copyright 1993-2004 George A Howlett. - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sublicense, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE - * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION - * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#include <tk.h> -#include <tkInt.h> - -#include "tkbltGrBind.h" -#include "tkbltGraph.h" -#include "tkbltGrLegd.h" -#include "tkbltGrElem.h" -#include "tkbltGrPostscript.h" -#include "tkbltGrMisc.h" -#include "tkbltGrDef.h" -#include "tkbltConfig.h" -#include "tkbltGrPSOutput.h" - -using namespace Blt; - -static void SelectCmdProc(ClientData); -static Tk_SelectionProc SelectionProc; - -// OptionSpecs - -static const char* selectmodeObjOption[] = { - "single", "multiple", NULL -}; -static const char* positionObjOption[] = { - "rightmargin", "leftmargin", "topmargin", "bottommargin", - "plotarea", "xy", NULL -}; - -static Tk_OptionSpec optionSpecs[] = { - {TK_OPTION_BORDER, "-activebackground", "activeBackground", - "ActiveBackground", - STD_ACTIVE_BACKGROUND, -1, Tk_Offset(LegendOptions, activeBg), - 0, NULL, CACHE}, - {TK_OPTION_PIXELS, "-activeborderwidth", "activeBorderWidth", - "ActiveBorderWidth", - STD_BORDERWIDTH, -1, Tk_Offset(LegendOptions, entryBW), 0, NULL, LAYOUT}, - {TK_OPTION_COLOR, "-activeforeground", "activeForeground", "ActiveForeground", - STD_ACTIVE_FOREGROUND, -1, Tk_Offset(LegendOptions, activeFgColor), - 0, NULL, CACHE}, - {TK_OPTION_RELIEF, "-activerelief", "activeRelief", "ActiveRelief", - "flat", -1, Tk_Offset(LegendOptions, activeRelief), 0, NULL, LAYOUT}, - {TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor", - "n", -1, Tk_Offset(LegendOptions, anchor), 0, NULL, LAYOUT}, - {TK_OPTION_SYNONYM, "-bg", NULL, NULL, - NULL, 0, -1, 0, (ClientData)"-background", 0}, - {TK_OPTION_BORDER, "-background", "background", "Background", - NULL, -1, Tk_Offset(LegendOptions, normalBg), - TK_OPTION_NULL_OK, NULL, CACHE}, - {TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth", - STD_BORDERWIDTH, -1, Tk_Offset(LegendOptions, borderWidth), - 0, NULL, LAYOUT}, - {TK_OPTION_SYNONYM, "-bd", NULL, NULL, - NULL, 0, -1, 0, (ClientData)"-borderwidth", 0}, - {TK_OPTION_INT, "-columns", "columns", "columns", - "0", -1, Tk_Offset(LegendOptions, reqColumns), 0, NULL, LAYOUT}, - {TK_OPTION_BOOLEAN, "-exportselection", "exportSelection", "ExportSelection", - "no", -1, Tk_Offset(LegendOptions, exportSelection), 0, NULL, LAYOUT}, - {TK_OPTION_CUSTOM, "-focusdashes", "focusDashes", "FocusDashes", - "dot", -1, Tk_Offset(LegendOptions, focusDashes), - TK_OPTION_NULL_OK, &dashesObjOption, CACHE}, - {TK_OPTION_COLOR, "-focusforeground", "focusForeground", "FocusForeground", - STD_ACTIVE_FOREGROUND, -1, Tk_Offset(LegendOptions, focusColor), - 0, NULL, CACHE}, - {TK_OPTION_FONT, "-font", "font", "Font", - STD_FONT_SMALL, -1, Tk_Offset(LegendOptions, style.font), 0, NULL, LAYOUT}, - {TK_OPTION_SYNONYM, "-fg", NULL, NULL, - NULL, 0, -1, 0, (ClientData)"-foreground", 0}, - {TK_OPTION_COLOR, "-foreground", "foreground", "Foreground", - STD_NORMAL_FOREGROUND, -1, Tk_Offset(LegendOptions, fgColor), - 0, NULL, CACHE}, - {TK_OPTION_BOOLEAN, "-hide", "hide", "Hide", - "no", -1, Tk_Offset(LegendOptions, hide), 0, NULL, LAYOUT}, - {TK_OPTION_PIXELS, "-ipadx", "iPadX", "Pad", - "1", -1, Tk_Offset(LegendOptions, ixPad), 0, NULL, LAYOUT}, - {TK_OPTION_PIXELS, "-ipady", "iPadY", "Pad", - "1", -1, Tk_Offset(LegendOptions, iyPad), 0, NULL, LAYOUT}, - {TK_OPTION_BORDER, "-nofocusselectbackground", "noFocusSelectBackground", - "NoFocusSelectBackground", - STD_ACTIVE_BACKGROUND, -1, Tk_Offset(LegendOptions, selOutFocusBg), - 0, NULL, CACHE}, - {TK_OPTION_COLOR, "-nofocusselectforeground", "noFocusSelectForeground", - "NoFocusSelectForeground", - STD_ACTIVE_FOREGROUND, -1, Tk_Offset(LegendOptions, selOutFocusFgColor), - 0, NULL, CACHE}, - {TK_OPTION_PIXELS, "-padx", "padX", "Pad", - "1", -1, Tk_Offset(LegendOptions, xPad), 0, NULL, LAYOUT}, - {TK_OPTION_PIXELS, "-pady", "padY", "Pad", - "1", -1, Tk_Offset(LegendOptions, yPad), 0, NULL, LAYOUT}, - {TK_OPTION_STRING_TABLE, "-position", "position", "Position", - "rightmargin", -1, Tk_Offset(LegendOptions, position), - 0, &positionObjOption, LAYOUT}, - {TK_OPTION_BOOLEAN, "-raised", "raised", "Raised", - "no", -1, Tk_Offset(LegendOptions, raised), 0, NULL, LAYOUT}, - {TK_OPTION_RELIEF, "-relief", "relief", "Relief", - "flat", -1, Tk_Offset(LegendOptions, relief), 0, NULL, LAYOUT}, - {TK_OPTION_INT, "-rows", "rows", "rows", - "0", -1, Tk_Offset(LegendOptions, reqRows), 0, NULL, LAYOUT}, - {TK_OPTION_BORDER, "-selectbackground", "selectBackground", - "SelectBackground", - STD_ACTIVE_BACKGROUND, -1, Tk_Offset(LegendOptions, selInFocusBg), - 0, NULL, LAYOUT}, - {TK_OPTION_PIXELS, "-selectborderwidth", "selectBorderWidth", - "SelectBorderWidth", - "1", -1, Tk_Offset(LegendOptions, selBW), 0, NULL, LAYOUT}, - {TK_OPTION_STRING, "-selectcommand", "selectCommand", "SelectCommand", - NULL, -1, Tk_Offset(LegendOptions, selectCmd), TK_OPTION_NULL_OK, NULL, 0}, - {TK_OPTION_COLOR, "-selectforeground", "selectForeground", "SelectForeground", - STD_ACTIVE_FOREGROUND, -1, Tk_Offset(LegendOptions, selInFocusFgColor), - 0, NULL, CACHE}, - {TK_OPTION_STRING_TABLE, "-selectmode", "selectMode", "SelectMode", - "multiple", -1, Tk_Offset(LegendOptions, selectMode), - 0, &selectmodeObjOption, 0}, - {TK_OPTION_RELIEF, "-selectrelief", "selectRelief", "SelectRelief", - "flat", -1, Tk_Offset(LegendOptions, selRelief), 0, NULL, LAYOUT}, - {TK_OPTION_STRING, "-title", "title", "Title", - NULL, -1, Tk_Offset(LegendOptions, title), TK_OPTION_NULL_OK, NULL, LAYOUT}, - {TK_OPTION_COLOR, "-titlecolor", "titleColor", "TitleColor", - STD_NORMAL_FOREGROUND, -1, Tk_Offset(LegendOptions, titleStyle.color), - 0, NULL, CACHE}, - {TK_OPTION_FONT, "-titlefont", "titleFont", "TitleFont", - STD_FONT_SMALL, -1, Tk_Offset(LegendOptions, titleStyle.font), - 0, NULL, LAYOUT}, - {TK_OPTION_PIXELS, "-x", "x", "X", - "0", -1, Tk_Offset(LegendOptions, xReq), 0, NULL, LAYOUT}, - {TK_OPTION_PIXELS, "-y", "y", "Y", - "0", -1, Tk_Offset(LegendOptions, yReq), 0, NULL, LAYOUT}, - {TK_OPTION_END, NULL, NULL, NULL, NULL, 0, -1, 0, 0, 0} -}; - -Legend::Legend(Graph* graphPtr) -{ - ops_ = (void*)calloc(1, sizeof(LegendOptions)); - LegendOptions* ops = (LegendOptions*)ops_; - - graphPtr_ = graphPtr; - flags =0; - nEntries_ =0; - nColumns_ =0; - nRows_ =0; - width_ =0; - height_ =0; - entryWidth_ =0; - entryHeight_ =0; - x_ =0; - y_ =0; - bindTable_ =NULL; - focusGC_ =NULL; - focusPtr_ =NULL; - selAnchorPtr_ =NULL; - selMarkPtr_ =NULL; - selected_ = new Chain(); - titleWidth_ =0; - titleHeight_ =0; - - ops->style.anchor =TK_ANCHOR_NW; - ops->style.color =NULL; - ops->style.font =NULL; - ops->style.angle =0; - ops->style.justify =TK_JUSTIFY_LEFT; - - ops->titleStyle.anchor =TK_ANCHOR_NW; - ops->titleStyle.color =NULL; - ops->titleStyle.font =NULL; - ops->titleStyle.angle =0; - ops->titleStyle.justify =TK_JUSTIFY_LEFT; - - bindTable_ = new BindTable(graphPtr, this); - - Tcl_InitHashTable(&selectTable_, TCL_ONE_WORD_KEYS); - - Tk_CreateSelHandler(graphPtr_->tkwin_, XA_PRIMARY, XA_STRING, - SelectionProc, this, XA_STRING); - - optionTable_ =Tk_CreateOptionTable(graphPtr->interp_, optionSpecs); - Tk_InitOptions(graphPtr->interp_, (char*)ops_, optionTable_, graphPtr->tkwin_); -} - -Legend::~Legend() -{ - // LegendOptions* ops = (LegendOptions*)ops_; - - delete bindTable_; - - if (focusGC_) - graphPtr_->freePrivateGC(focusGC_); - - if (graphPtr_->tkwin_) - Tk_DeleteSelHandler(graphPtr_->tkwin_, XA_PRIMARY, XA_STRING); - - delete selected_; - - Tk_FreeConfigOptions((char*)ops_, optionTable_, graphPtr_->tkwin_); - free(ops_); -} - -int Legend::configure() -{ - LegendOptions* ops = (LegendOptions*)ops_; - - // GC for active label, Dashed outline - unsigned long gcMask = GCForeground | GCLineStyle; - XGCValues gcValues; - gcValues.foreground = ops->focusColor->pixel; - gcValues.line_style = (LineIsDashed(ops->focusDashes)) - ? LineOnOffDash : LineSolid; - GC newGC = graphPtr_->getPrivateGC(gcMask, &gcValues); - if (LineIsDashed(ops->focusDashes)) { - ops->focusDashes.offset = 2; - graphPtr_->setDashes(newGC, &ops->focusDashes); - } - if (focusGC_) - graphPtr_->freePrivateGC(focusGC_); - - focusGC_ = newGC; - - return TCL_OK; -} - -void Legend::map(int plotWidth, int plotHeight) -{ - LegendOptions* ops = (LegendOptions*)ops_; - - entryWidth_ =0; - entryHeight_ = 0; - nRows_ =0; - nColumns_ =0; - nEntries_ =0; - height_ =0; - width_ = 0; - - TextStyle tts(graphPtr_, &ops->titleStyle); - tts.getExtents(ops->title, &titleWidth_, &titleHeight_); - - // Count the number of legend entries and determine the widest and tallest - // label. The number of entries would normally be the number of elements, - // but elements can have no legend entry (-label ""). - int nEntries =0; - int maxWidth =0; - int maxHeight =0; - TextStyle ts(graphPtr_, &ops->style); - for (ChainLink* link = Chain_FirstLink(graphPtr_->elements_.displayList); - link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - - if (!elemOps->label) - continue; - - int w, h; - ts.getExtents(elemOps->label, &w, &h); - if (maxWidth < (int)w) - maxWidth = w; - - if (maxHeight < (int)h) - maxHeight = h; - - nEntries++; - } - if (nEntries == 0) - return; - - Tk_FontMetrics fontMetrics; - Tk_GetFontMetrics(ops->style.font, &fontMetrics); - int symbolWidth = 2 * fontMetrics.ascent; - - maxWidth += 2 * ops->entryBW + 2*ops->ixPad + - + symbolWidth + 3 * 2; - - maxHeight += 2 * ops->entryBW + 2*ops->iyPad; - - maxWidth |= 0x01; - maxHeight |= 0x01; - - int lw = plotWidth - 2 * ops->borderWidth - 2*ops->xPad; - int lh = plotHeight - 2 * ops->borderWidth - 2*ops->yPad; - - /* - * The number of rows and columns is computed as one of the following: - * - * both options set User defined. - * -rows Compute columns from rows. - * -columns Compute rows from columns. - * neither set Compute rows and columns from - * size of plot. - */ - int nRows =0; - int nColumns =0; - if (ops->reqRows > 0) { - nRows = MIN(ops->reqRows, nEntries); - if (ops->reqColumns > 0) - nColumns = MIN(ops->reqColumns, nEntries); - else - nColumns = ((nEntries - 1) / nRows) + 1; /* Only -rows. */ - } - else if (ops->reqColumns > 0) { /* Only -columns. */ - nColumns = MIN(ops->reqColumns, nEntries); - nRows = ((nEntries - 1) / nColumns) + 1; - } - else { - // Compute # of rows and columns from the legend size - nRows = lh / maxHeight; - nColumns = lw / maxWidth; - if (nRows < 1) { - nRows = nEntries; - } - if (nColumns < 1) { - nColumns = nEntries; - } - if (nRows > nEntries) { - nRows = nEntries; - } - switch ((Position)ops->position) { - case TOP: - case BOTTOM: - nRows = ((nEntries - 1) / nColumns) + 1; - break; - case LEFT: - case RIGHT: - default: - nColumns = ((nEntries - 1) / nRows) + 1; - break; - } - } - if (nColumns < 1) - nColumns = 1; - - if (nRows < 1) - nRows = 1; - - lh = (nRows * maxHeight); - if (titleHeight_ > 0) - lh += titleHeight_ + ops->yPad; - - lw = nColumns * maxWidth; - if (lw < (int)(titleWidth_)) - lw = titleWidth_; - - width_ = lw + 2 * ops->borderWidth + 2*ops->xPad; - height_ = lh + 2 * ops->borderWidth + 2*ops->yPad; - nRows_ = nRows; - nColumns_ = nColumns; - nEntries_ = nEntries; - entryHeight_ = maxHeight; - entryWidth_ = maxWidth; - - int row =0; - int col =0; - int count =0; - for (ChainLink* link = Chain_FirstLink(graphPtr_->elements_.displayList); - link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - count++; - elemPtr->row_ = row; - elemPtr->col_ = col; - row++; - if ((count % nRows) == 0) { - col++; - row = 0; - } - } -} - -void Legend::draw(Drawable drawable) -{ - LegendOptions* ops = (LegendOptions*)ops_; - GraphOptions* gops = (GraphOptions*)graphPtr_->ops_; - - if ((ops->hide) || (nEntries_ == 0)) - return; - - setOrigin(); - Tk_Window tkwin = graphPtr_->tkwin_; - int w = width_; - int h = height_; - - Pixmap pixmap = Tk_GetPixmap(graphPtr_->display_, Tk_WindowId(tkwin), w, h, - Tk_Depth(tkwin)); - - if (ops->normalBg) - Tk_Fill3DRectangle(tkwin, pixmap, ops->normalBg, 0, 0, - w, h, 0, TK_RELIEF_FLAT); - else { - switch ((Position)ops->position) { - case TOP: - case BOTTOM: - case RIGHT: - case LEFT: - Tk_Fill3DRectangle(tkwin, pixmap, gops->normalBg, 0, 0, - w, h, 0, TK_RELIEF_FLAT); - break; - case PLOT: - case XY: - // Legend background is transparent and is positioned over the the - // plot area. Either copy the part of the background from the backing - // store pixmap or (if no backing store exists) just fill it with the - // background color of the plot. - if (graphPtr_->cache_ != None) - XCopyArea(graphPtr_->display_, graphPtr_->cache_, pixmap, - graphPtr_->drawGC_, x_, y_, w, h, 0, 0); - else - Tk_Fill3DRectangle(tkwin, pixmap, gops->plotBg, 0, 0, - w, h, TK_RELIEF_FLAT, 0); - break; - }; - } - - Tk_FontMetrics fontMetrics; - Tk_GetFontMetrics(ops->style.font, &fontMetrics); - - int symbolSize = fontMetrics.ascent; - int xMid = symbolSize + 1 + ops->entryBW; - int yMid = (symbolSize / 2) + 1 + ops->entryBW; - int xLabel = 2 * symbolSize + ops->entryBW + ops->ixPad + 2 * 2; - int ySymbol = yMid + ops->iyPad; - int xSymbol = xMid + 2; - - int x = ops->xPad + ops->borderWidth; - int y = ops->yPad + ops->borderWidth; - - TextStyle tts(graphPtr_, &ops->titleStyle); - tts.drawText(pixmap, ops->title, x, y); - if (titleHeight_ > 0) - y += titleHeight_ + ops->yPad; - - int count = 0; - int yStart = y; - TextStyle ts(graphPtr_, &ops->style); - - for (ChainLink* link = Chain_FirstLink(graphPtr_->elements_.displayList); - link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - if (!elemOps->label) - continue; - - int isSelected = entryIsSelected(elemPtr); - if (elemPtr->labelActive_) - Tk_Fill3DRectangle(tkwin, pixmap, ops->activeBg, - x, y, entryWidth_, entryHeight_, - ops->entryBW, ops->activeRelief); - else if (isSelected) { - XColor* fg = (flags & FOCUS) ? - ops->selInFocusFgColor : ops->selOutFocusFgColor; - Tk_3DBorder bg = (flags & FOCUS) ? - ops->selInFocusBg : ops->selOutFocusBg; - ops->style.color = fg; - Tk_Fill3DRectangle(tkwin, pixmap, bg, x, y, - entryWidth_, entryHeight_, - ops->selBW, ops->selRelief); - } - else { - ops->style.color = ops->fgColor; - if (elemOps->legendRelief != TK_RELIEF_FLAT) - Tk_Fill3DRectangle(tkwin, pixmap, gops->normalBg, - x, y, entryWidth_, - entryHeight_, ops->entryBW, - elemOps->legendRelief); - } - elemPtr->drawSymbol(pixmap, x + xSymbol, y + ySymbol, symbolSize); - - ts.drawText(pixmap, elemOps->label, x+xLabel, y+ops->entryBW+ops->iyPad); - count++; - - if (focusPtr_ == elemPtr) { - if (isSelected) { - XColor* color = (flags & FOCUS) ? - ops->selInFocusFgColor : ops->selOutFocusFgColor; - XSetForeground(graphPtr_->display_, focusGC_, color->pixel); - } - XDrawRectangle(graphPtr_->display_, pixmap, focusGC_, - x + 1, y + 1, entryWidth_ - 3, - entryHeight_ - 3); - if (isSelected) - XSetForeground(graphPtr_->display_, focusGC_, ops->focusColor->pixel); - } - - // Check when to move to the next column - if ((count % nRows_) > 0) - y += entryHeight_; - else { - x += entryWidth_; - y = yStart; - } - } - - Tk_3DBorder bg = ops->normalBg; - if (!bg) - bg = gops->normalBg; - - Tk_Draw3DRectangle(tkwin, pixmap, bg, 0, 0, w, h, - ops->borderWidth, ops->relief); - XCopyArea(graphPtr_->display_, pixmap, drawable, graphPtr_->drawGC_, - 0, 0, w, h, x_, y_); - - Tk_FreePixmap(graphPtr_->display_, pixmap); -} - -void Legend::print(PSOutput* psPtr) -{ - LegendOptions* ops = (LegendOptions*)ops_; - GraphOptions* gops = (GraphOptions*)graphPtr_->ops_; - PostscriptOptions* pops = (PostscriptOptions*)graphPtr_->postscript_->ops_; - - if ((ops->hide) || (nEntries_ == 0)) - return; - - setOrigin(); - - double x = x_; - double y = y_; - int width = width_ - 2*ops->xPad; - int height = height_ - 2*ops->yPad; - - psPtr->append("% Legend\n"); - if (pops->decorations) { - if (ops->normalBg) - psPtr->fill3DRectangle(ops->normalBg, x, y, width, height, - ops->borderWidth, ops->relief); - else - psPtr->print3DRectangle(gops->normalBg, x, y, width, height, - ops->borderWidth, ops->relief); - - } - else { - psPtr->setClearBackground(); - psPtr->fillRectangle(x, y, width, height); - } - - Tk_FontMetrics fontMetrics; - Tk_GetFontMetrics(ops->style.font, &fontMetrics); - int symbolSize = fontMetrics.ascent; - int xMid = symbolSize + 1 + ops->entryBW; - int yMid = (symbolSize / 2) + 1 + ops->entryBW; - int xLabel = 2 * symbolSize + ops->entryBW + ops->ixPad + 5; - int xSymbol = xMid + ops->ixPad; - int ySymbol = yMid + ops->iyPad; - - x += ops->borderWidth; - y += ops->borderWidth; - TextStyle tts(graphPtr_, &ops->titleStyle); - tts.printText(psPtr, ops->title, x, y); - if (titleHeight_ > 0) - y += titleHeight_ + ops->yPad; - - int count = 0; - double yStart = y; - TextStyle ts(graphPtr_, &ops->style); - - for (ChainLink* link = Chain_FirstLink(graphPtr_->elements_.displayList); - link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - - if (!elemOps->label) - continue; - - if (elemPtr->labelActive_) { - ops->style.color = ops->activeFgColor; - psPtr->fill3DRectangle(ops->activeBg, x, y, entryWidth_, - entryHeight_, ops->entryBW, - ops->activeRelief); - } - else { - ops->style.color = ops->fgColor; - if (elemOps->legendRelief != TK_RELIEF_FLAT) - psPtr->print3DRectangle(gops->normalBg, x, y, entryWidth_, entryHeight_, - ops->entryBW, elemOps->legendRelief); - } - elemPtr->printSymbol(psPtr, x + xSymbol, y + ySymbol, symbolSize); - ts.printText(psPtr, elemOps->label, x + xLabel, - y + ops->entryBW + ops->iyPad); - count++; - - if ((count % nRows_) > 0) - y += entryHeight_; - else { - x += entryWidth_; - y = yStart; - } - } -} - -void Legend::removeElement(Element* elemPtr) -{ - bindTable_->deleteBindings(elemPtr); -} - -void Legend::eventuallyInvokeSelectCmd() -{ - if ((flags & SELECT_PENDING) == 0) { - flags |= SELECT_PENDING; - Tcl_DoWhenIdle(SelectCmdProc, this); - } -} - -void Legend::setOrigin() -{ - LegendOptions* ops = (LegendOptions*)ops_; - GraphOptions* gops = (GraphOptions*)graphPtr_->ops_; - - int x =0; - int y =0; - int w =0; - int h =0; - switch ((Position)ops->position) { - case RIGHT: - w = gops->rightMargin.width - gops->rightMargin.axesOffset; - h = graphPtr_->bottom_ - graphPtr_->top_; - x = graphPtr_->right_ + gops->rightMargin.axesOffset; - y = graphPtr_->top_; - break; - - case LEFT: - w = gops->leftMargin.width - gops->leftMargin.axesOffset; - h = graphPtr_->bottom_ - graphPtr_->top_; - x = graphPtr_->inset_; - y = graphPtr_->top_; - break; - - case TOP: - w = graphPtr_->right_ - graphPtr_->left_; - h = gops->topMargin.height - gops->topMargin.axesOffset; - if (gops->title) - h -= graphPtr_->titleHeight_; - - x = graphPtr_->left_; - y = graphPtr_->inset_; - if (gops->title) - y += graphPtr_->titleHeight_; - break; - - case BOTTOM: - w = graphPtr_->right_ - graphPtr_->left_; - h = gops->bottomMargin.height - gops->bottomMargin.axesOffset; - x = graphPtr_->left_; - y = graphPtr_->bottom_ + gops->bottomMargin.axesOffset; - break; - - case PLOT: - w = graphPtr_->right_ - graphPtr_->left_; - h = graphPtr_->bottom_ - graphPtr_->top_; - x = graphPtr_->left_; - y = graphPtr_->top_; - break; - - case XY: - w = width_; - h = height_; - x = ops->xReq; - y = ops->yReq; - if (x < 0) - x += graphPtr_->width_; - - if (y < 0) - y += graphPtr_->height_; - break; - } - - switch (ops->anchor) { - case TK_ANCHOR_NW: - break; - case TK_ANCHOR_W: - if (h > height_) - y += (h - height_) / 2; - break; - case TK_ANCHOR_SW: - if (h > height_) - y += (h - height_); - break; - case TK_ANCHOR_N: - if (w > width_) - x += (w - width_) / 2; - break; - case TK_ANCHOR_CENTER: - if (h > height_) - y += (h - height_) / 2; - - if (w > width_) - x += (w - width_) / 2; - break; - case TK_ANCHOR_S: - if (w > width_) - x += (w - width_) / 2; - - if (h > height_) - y += (h - height_); - break; - case TK_ANCHOR_NE: - if (w > width_) - x += w - width_; - break; - case TK_ANCHOR_E: - if (w > width_) - x += w - width_; - - if (h > height_) - y += (h - height_) / 2; - break; - case TK_ANCHOR_SE: - if (w > width_) { - x += w - width_; - } - if (h > height_) { - y += (h - height_); - } - break; - } - - x_ = x + ops->xPad; - y_ = y + ops->yPad; -} - -void Legend::selectEntry(Element* elemPtr) -{ - switch (flags & SELECT_TOGGLE) { - case SELECT_CLEAR: - deselectElement(elemPtr); - break; - case SELECT_SET: - selectElement(elemPtr); - break; - case SELECT_TOGGLE: - Tcl_HashEntry* hPtr = Tcl_FindHashEntry(&selectTable_, (char*)elemPtr); - if (hPtr) - deselectElement(elemPtr); - else - selectElement(elemPtr); - break; - } -} - -void Legend::selectElement(Element* elemPtr) -{ - int isNew; - Tcl_HashEntry* hPtr = - Tcl_CreateHashEntry(&selectTable_, (char*)elemPtr, &isNew); - if (isNew) { - ChainLink* link = selected_->append(elemPtr); - Tcl_SetHashValue(hPtr, link); - } -} - -void Legend::deselectElement(Element* elemPtr) -{ - Tcl_HashEntry* hPtr = Tcl_FindHashEntry(&selectTable_, (char*)elemPtr); - if (hPtr) { - ChainLink* link = (ChainLink*)Tcl_GetHashValue(hPtr); - selected_->deleteLink(link); - Tcl_DeleteHashEntry(hPtr); - } -} - - -int Legend::selectRange(Element *fromPtr, Element *toPtr) -{ - int isBefore=0; - for (ChainLink* linkPtr = fromPtr->link; linkPtr; linkPtr = linkPtr->next()) - if (linkPtr == toPtr->link) - isBefore =1; - - if (isBefore) { - for (ChainLink* link = fromPtr->link; link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - selectEntry(elemPtr); - if (link == toPtr->link) - break; - } - } - else { - for (ChainLink* link = fromPtr->link; link; link = Chain_PrevLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - selectEntry(elemPtr); - if (link == toPtr->link) - break; - } - } - - return TCL_OK; -} - -void Legend::clearSelection() -{ - LegendOptions* ops = (LegendOptions*)ops_; - - Tcl_DeleteHashTable(&selectTable_); - Tcl_InitHashTable(&selectTable_, TCL_ONE_WORD_KEYS); - selected_->reset(); - - if (ops->selectCmd) - eventuallyInvokeSelectCmd(); -} - -int Legend::entryIsSelected(Element* elemPtr) -{ - Tcl_HashEntry* hPtr = Tcl_FindHashEntry(&selectTable_, (char*)elemPtr); - return (hPtr != NULL); -} - -int Legend::getElementFromObj(Tcl_Obj* objPtr, Element** elemPtrPtr) -{ - const char *string = Tcl_GetString(objPtr); - Element* elemPtr = NULL; - - if (!strcmp(string, "anchor")) - elemPtr = selAnchorPtr_; - else if (!strcmp(string, "current")) - elemPtr = (Element*)bindTable_->currentItem(); - else if (!strcmp(string, "first")) - elemPtr = getFirstElement(); - else if (!strcmp(string, "focus")) - elemPtr = focusPtr_; - else if (!strcmp(string, "last")) - elemPtr = getLastElement(); - else if (!strcmp(string, "end")) - elemPtr = getLastElement(); - else if (!strcmp(string, "next.row")) - elemPtr = getNextRow(focusPtr_); - else if (!strcmp(string, "next.column")) - elemPtr = getNextColumn(focusPtr_); - else if (!strcmp(string, "previous.row")) - elemPtr = getPreviousRow(focusPtr_); - else if (!strcmp(string, "previous.column")) - elemPtr = getPreviousColumn(focusPtr_); - else if (string[0] == '@') { - int x, y; - if (graphPtr_->getXY(string, &x, &y) != TCL_OK) - return TCL_ERROR; - - ClassId classId; - elemPtr = (Element*)pickEntry(x, y, &classId); - } - else { - if (graphPtr_->getElement(objPtr, &elemPtr) != TCL_OK) - return TCL_ERROR; - - if (!elemPtr->link) { - Tcl_AppendResult(graphPtr_->interp_, "bad legend index \"", string, "\"", - (char *)NULL); - return TCL_ERROR; - } - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - if (!elemOps->label) - elemPtr = NULL; - } - - *elemPtrPtr = elemPtr; - return TCL_OK; -} - -Element* Legend::getNextRow(Element* focusPtr) -{ - unsigned col = focusPtr->col_; - unsigned row = focusPtr->row_ + 1; - for (ChainLink* link = focusPtr->link; link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - - if (!elemOps->label) - continue; - - if ((elemPtr->col_ == col) && (elemPtr->row_ == row)) - return elemPtr; - } - return NULL; -} - -Element* Legend::getNextColumn(Element* focusPtr) -{ - unsigned col = focusPtr->col_ + 1; - unsigned row = focusPtr->row_; - for (ChainLink* link = focusPtr->link; link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - - if (!elemOps->label) - continue; - - if ((elemPtr->col_ == col) && (elemPtr->row_ == row)) - return elemPtr; - } - return NULL; -} - -Element* Legend::getPreviousRow(Element* focusPtr) -{ - unsigned col = focusPtr->col_; - unsigned row = focusPtr->row_ - 1; - for (ChainLink* link = focusPtr->link; link; link = Chain_PrevLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - - if (!elemOps->label) - continue; - - if ((elemPtr->col_ == col) && (elemPtr->row_ == row)) - return elemPtr; - } - return NULL; -} - -Element* Legend::getPreviousColumn(Element* focusPtr) -{ - unsigned col = focusPtr->col_ - 1; - unsigned row = focusPtr->row_; - for (ChainLink* link = focusPtr->link; link; link = Chain_PrevLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - - if (!elemOps->label) - continue; - - if ((elemPtr->col_ == col) && (elemPtr->row_ == row)) - return elemPtr; - } - return NULL; -} - -Element* Legend::getFirstElement() -{ - for (ChainLink* link = Chain_FirstLink(graphPtr_->elements_.displayList); - link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - if (elemOps->label) - return elemPtr; - } - return NULL; -} - -Element* Legend::getLastElement() -{ - for (ChainLink* link = Chain_LastLink(graphPtr_->elements_.displayList); - link; link = Chain_PrevLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - if (elemOps->label) - return elemPtr; - } - return NULL; -} - -ClientData Legend::pickEntry(int xx, int yy, ClassId* classIdPtr) -{ - LegendOptions* ops = (LegendOptions*)ops_; - - int ww = width_; - int hh = height_; - - if (titleHeight_ > 0) - yy -= titleHeight_ + ops->yPad; - - xx -= x_ + ops->borderWidth; - yy -= y_ + ops->borderWidth; - ww -= 2 * ops->borderWidth + 2*ops->xPad; - hh -= 2 * ops->borderWidth + 2*ops->yPad; - - // In the bounding box? if so, compute the index - if (xx >= 0 && xx < ww && yy >= 0 && yy < hh) { - int row = yy / entryHeight_; - int column = xx / entryWidth_; - int nn = (column * nRows_) + row; - - // Legend entries are stored in bottom-to-top - if (nn < nEntries_) { - int count = 0; - for (ChainLink* link = Chain_FirstLink(graphPtr_->elements_.displayList); - link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - ElementOptions* elemOps = (ElementOptions*)elemPtr->ops(); - if (elemOps->label) { - if (count == nn) { - *classIdPtr = elemPtr->classId(); - return elemPtr; - } - count++; - } - } - } - } - - return NULL; -} - -// Support - -static int SelectionProc(ClientData clientData, int offset, char *buffer, - int maxBytes) -{ - Legend* legendPtr = (Legend*)clientData; - Graph* graphPtr = legendPtr->graphPtr_; - LegendOptions* ops = (LegendOptions*)legendPtr->ops(); - - if ((ops->exportSelection) == 0) - return -1; - - // Retrieve the names of the selected entries - Tcl_DString dString; - Tcl_DStringInit(&dString); - if (legendPtr->flags & SELECT_SORTED) { - for (ChainLink* link=Chain_FirstLink(legendPtr->selected_); - link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - Tcl_DStringAppend(&dString, elemPtr->name_, -1); - Tcl_DStringAppend(&dString, "\n", -1); - } - } - else { - for (ChainLink* link=Chain_FirstLink(graphPtr->elements_.displayList); - link; link = Chain_NextLink(link)) { - Element* elemPtr = (Element*)Chain_GetValue(link); - if (legendPtr->entryIsSelected(elemPtr)) { - Tcl_DStringAppend(&dString, elemPtr->name_, -1); - Tcl_DStringAppend(&dString, "\n", -1); - } - } - } - - int nBytes = Tcl_DStringLength(&dString) - offset; - strncpy(buffer, Tcl_DStringValue(&dString) + offset, maxBytes); - Tcl_DStringFree(&dString); - buffer[maxBytes] = '\0'; - return MIN(nBytes, maxBytes); -} - -static void SelectCmdProc(ClientData clientData) -{ - Legend* legendPtr = (Legend*)clientData; - LegendOptions* ops = (LegendOptions*)legendPtr->ops(); - - Tcl_Preserve(legendPtr); - legendPtr->flags &= ~SELECT_PENDING; - if (ops->selectCmd) { - Tcl_Interp* interp = legendPtr->graphPtr_->interp_; - if (Tcl_GlobalEval(interp, ops->selectCmd) != TCL_OK) - Tcl_BackgroundError(interp); - } - Tcl_Release(legendPtr); -} - - - |