ui/qt/graphics.cpp

Wed, 09 Dec 2020 11:33:00 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Wed, 09 Dec 2020 11:33:00 +0100
changeset 1
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parent 0
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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2015 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include "graphics.h"
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30 #include "container.h"
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31
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32
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33 DrawingArea::DrawingArea(UiObject *obj, ui_drawfunc cb, void *data) {
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34 object = obj;
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35 drawCallback = cb;
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36 userdata = data;
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37 }
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38
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39 DrawingArea::~DrawingArea() {
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40
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41 }
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42
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43 void DrawingArea::paintEvent(QPaintEvent *event) {
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44 QPainter painter(this);
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45
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46 UiQtGraphics g;
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47 g.g.width = this->width();
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48 g.g.height = this->height();
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49 g.painter = &painter;
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50
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51 UiEvent ev;
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52 ev.obj = object;
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53 ev.window = object->window;
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54 ev.document = object->ctx->document;
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55 ev.eventdata = NULL;
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56 ev.intval = 0;
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57
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58 drawCallback(&ev, &g.g, userdata);
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59 }
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60
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61
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62
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63 UIWIDGET ui_drawingarea(UiObject *obj, ui_drawfunc f, void *userdata) {
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64 DrawingArea *widget = new DrawingArea(obj, f, userdata);
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65
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66 UiContainer *ct = uic_get_current_container(obj);
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67 ct->add(widget, true);
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68
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69 return widget;
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70 }
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71
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72 void ui_drawingarea_mousehandler(UiObject *obj, UIWIDGET widget, ui_callback f, void *u) {
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73
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74 }
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75
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76 void ui_drawingarea_getsize(UIWIDGET drawingarea, int *width, int *height) {
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77
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78 }
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79
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80 void ui_drawingarea_redraw(UIWIDGET drawingarea) {
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81
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82 }
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83
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84
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85 /* -------------------- text layout functions -------------------- */
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86
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87 UiTextLayout* ui_text(UiGraphics *g) {
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88 UiTextLayout *textlayout = new UiTextLayout();
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89 return textlayout;
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90 }
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91
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92 void ui_text_free(UiTextLayout *text) {
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93 delete text;
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94 }
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95
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96 void ui_text_setstring(UiTextLayout *layout, char *str) {
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97 layout->text.setText(QString::fromUtf8(str));
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98 }
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99
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100 void ui_text_setstringl(UiTextLayout *layout, char *str, int len) {
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101 layout->text.setText(QString::fromUtf8(str, len));
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102 }
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103
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104 void ui_text_setfont(UiTextLayout *layout, char *font, int size) {
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105 layout->font = QFont(QString::fromUtf8(font), size);
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106 }
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107
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108 void ui_text_getsize(UiTextLayout *layout, int *width, int *height) {
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109 QSizeF size = layout->text.size();
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110 *width = (int)size.width();
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111 *height = (int)size.height();
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112 }
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113
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114 void ui_text_setwidth(UiTextLayout *layout, int width) {
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115 layout->text.setTextWidth((qreal)width);
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116 }
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117
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118
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119 /* -------------------- drawing functions -------------------- */
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120
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121 void ui_graphics_color(UiGraphics *g, int red, int green, int blue) {
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122 UiQtGraphics *gr = (UiQtGraphics*)g;
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123 gr->color = QColor(red, green, blue);
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124 gr->painter->setPen(gr->color);
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125 }
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126
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127 void ui_draw_line(UiGraphics *g, int x1, int y1, int x2, int y2) {
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128 UiQtGraphics *gr = (UiQtGraphics*)g;
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129
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130 gr->painter->drawLine(x1, y1, x2, y2);
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131 }
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132
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133 void ui_draw_rect(UiGraphics *g, int x, int y, int w, int h, int fill) {
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134 UiQtGraphics *gr = (UiQtGraphics*)g;
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135
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136 QRect rect(x, y, w, h);
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137 if(fill) {
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138 gr->painter->fillRect(rect, gr->color);
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139
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140 } else {
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141 gr->painter->drawRect(rect);
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142 }
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143 }
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144
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145 void ui_draw_text(UiGraphics *g, int x, int y, UiTextLayout *text) {
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146 UiQtGraphics *gr = (UiQtGraphics*)g;
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147
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148 gr->painter->setFont(text->font);
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149 gr->painter->drawStaticText(x, y, text->text);
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150 }
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151

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