diff options
Diffstat (limited to 'pango/pango-renderer.c')
| -rw-r--r-- | pango/pango-renderer.c | 144 |
1 files changed, 72 insertions, 72 deletions
diff --git a/pango/pango-renderer.c b/pango/pango-renderer.c index bb415cc0..702af77c 100644 --- a/pango/pango-renderer.c +++ b/pango/pango-renderer.c @@ -2,7 +2,7 @@ * pango-renderer.h: Base class for rendering * * Copyright (C) 2004 Red Hat, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either @@ -41,7 +41,7 @@ struct _LineState { PangoUnderline underline; PangoRectangle underline_rect; - + gboolean strikethrough; PangoRectangle strikethrough_rect; @@ -103,7 +103,7 @@ static void pango_renderer_class_init (PangoRendererClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); - + klass->draw_glyphs = pango_renderer_default_draw_glyphs; klass->draw_rectangle = pango_renderer_default_draw_rectangle; klass->draw_error_underline = pango_renderer_default_draw_error_underline; @@ -127,7 +127,7 @@ static void pango_renderer_finalize (GObject *gobject) { PangoRenderer *renderer = PANGO_RENDERER (gobject); - + if (renderer->matrix) pango_matrix_free (renderer->matrix); } @@ -152,7 +152,7 @@ pango_renderer_draw_layout (PangoRenderer *renderer, int y) { PangoLayoutIter *iter; - + g_return_if_fail (PANGO_IS_RENDERER (renderer)); g_return_if_fail (PANGO_IS_LAYOUT (layout)); @@ -165,7 +165,7 @@ pango_renderer_draw_layout (PangoRenderer *renderer, pango_renderer_set_matrix (renderer, pango_context_get_matrix (context)); } - + pango_renderer_activate (renderer); iter = pango_layout_get_iter (layout); @@ -175,9 +175,9 @@ pango_renderer_draw_layout (PangoRenderer *renderer, PangoRectangle logical_rect; PangoLayoutLine *line; int baseline; - + line = pango_layout_iter_get_line_readonly (iter); - + pango_layout_iter_get_line_extents (iter, NULL, &logical_rect); baseline = pango_layout_iter_get_baseline (iter); @@ -189,7 +189,7 @@ pango_renderer_draw_layout (PangoRenderer *renderer, while (pango_layout_iter_next_line (iter)); pango_layout_iter_free (iter); - + pango_renderer_deactivate (renderer); } @@ -199,9 +199,9 @@ draw_underline (PangoRenderer *renderer, { PangoRectangle *rect = &state->underline_rect; PangoUnderline underline = state->underline; - + state->underline = PANGO_UNDERLINE_NONE; - + switch (underline) { case PANGO_UNDERLINE_NONE: @@ -241,7 +241,7 @@ draw_strikethrough (PangoRenderer *renderer, gboolean strikethrough = state->strikethrough; state->strikethrough = FALSE; - + if (strikethrough) pango_renderer_draw_rectangle (renderer, PANGO_RENDER_PART_STRIKETHROUGH, @@ -258,12 +258,12 @@ handle_line_state_change (PangoRenderer *renderer, LineState *state = renderer->priv->line_state; if (!state) return; - + if (part == PANGO_RENDER_PART_UNDERLINE && state->underline != PANGO_UNDERLINE_NONE) { PangoRectangle *rect = &state->underline_rect; - + rect->width = state->logical_rect_end - rect->x; draw_underline (renderer, state); state->underline = renderer->underline; @@ -295,7 +295,7 @@ add_underline (PangoRenderer *renderer, { PangoRectangle *current_rect = &state->underline_rect; PangoRectangle new_rect; - + int underline_thickness = pango_font_metrics_get_underline_thickness (metrics); int underline_position = pango_font_metrics_get_underline_position (metrics); @@ -303,7 +303,7 @@ add_underline (PangoRenderer *renderer, new_rect.width = logical_rect->width; new_rect.height = underline_thickness; new_rect.y = base_y; - + switch (renderer->underline) { case PANGO_UNDERLINE_NONE: @@ -318,7 +318,7 @@ add_underline (PangoRenderer *renderer, new_rect.y += ink_rect->y + ink_rect->height + underline_thickness; break; } - + if (renderer->underline == state->underline && new_rect.y == current_rect->y && new_rect.height == current_rect->height) @@ -328,7 +328,7 @@ add_underline (PangoRenderer *renderer, else { draw_underline (renderer, state); - + *current_rect = new_rect; state->underline = renderer->underline; } @@ -345,15 +345,15 @@ add_strikethrough (PangoRenderer *renderer, { PangoRectangle *current_rect = &state->strikethrough_rect; PangoRectangle new_rect; - + int strikethrough_thickness = pango_font_metrics_get_strikethrough_thickness (metrics); int strikethrough_position = pango_font_metrics_get_strikethrough_position (metrics); - + new_rect.x = base_x + logical_rect->x; new_rect.width = logical_rect->width; new_rect.y = base_y - strikethrough_position; new_rect.height = strikethrough_thickness; - + if (state->strikethrough && new_rect.y == current_rect->y && new_rect.height == current_rect->height) @@ -363,7 +363,7 @@ add_strikethrough (PangoRenderer *renderer, else { draw_strikethrough (renderer, state); - + *current_rect = new_rect; state->strikethrough = TRUE; } @@ -452,7 +452,7 @@ pango_renderer_draw_layout_line (PangoRenderer *renderer, GSList *l; gboolean got_overall = FALSE; PangoRectangle overall_rect; - + g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer)); /* We only change the matrix if the renderer isn't already @@ -485,7 +485,7 @@ pango_renderer_draw_layout_line (PangoRenderer *renderer, logical = &logical_rect; pango_renderer_prepare_run (renderer, run); - + get_item_properties (run->item, &rise, &shape_attr); if (shape_attr) @@ -526,7 +526,7 @@ pango_renderer_draw_layout_line (PangoRenderer *renderer, pango_layout_line_get_extents (line, NULL, &overall_rect); got_overall = TRUE; } - + pango_renderer_draw_rectangle (renderer, PANGO_RENDER_PART_BACKGROUND, x + x_off, @@ -551,17 +551,17 @@ pango_renderer_draw_layout_line (PangoRenderer *renderer, { metrics = pango_font_get_metrics (run->item->analysis.font, run->item->analysis.language); - + if (renderer->underline != PANGO_UNDERLINE_NONE) add_underline (renderer, &state,metrics, x + x_off, y - rise, ink, logical); - + if (renderer->strikethrough) add_strikethrough (renderer, &state, metrics, x + x_off, y - rise, ink, logical); - + pango_font_metrics_unref (metrics); } @@ -581,7 +581,7 @@ pango_renderer_draw_layout_line (PangoRenderer *renderer, draw_strikethrough (renderer, &state); renderer->priv->line_state = NULL; - + pango_renderer_deactivate (renderer); } @@ -607,11 +607,11 @@ pango_renderer_draw_glyphs (PangoRenderer *renderer, int y) { g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer)); - + pango_renderer_activate (renderer); PANGO_RENDERER_GET_CLASS (renderer)->draw_glyphs (renderer, font, glyphs, x, y); - + pango_renderer_deactivate (renderer); } @@ -629,7 +629,7 @@ pango_renderer_default_draw_glyphs (PangoRenderer *renderer, { PangoGlyphInfo *gi = &glyphs->glyphs[i]; Point p; - + to_device (renderer->matrix, x + x_position + gi->geometry.x_offset, y + gi->geometry.y_offset, @@ -669,7 +669,7 @@ pango_renderer_draw_rectangle (PangoRenderer *renderer, g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer)); g_return_if_fail (IS_VALID_PART (part)); g_return_if_fail (renderer->active_count > 0); - + PANGO_RENDERER_GET_CLASS (renderer)->draw_rectangle (renderer, part, x, y, width, height); } @@ -748,7 +748,7 @@ draw_rectangle (PangoRenderer *renderer, points[1].y, points[1].x, points[1].x + base_width, points[2].y, points[2].x - base_width, points[2].x); pango_renderer_draw_trapezoid (renderer, part, /* C */ - points[2].y, points[2].x - base_width, points[2].x, + points[2].y, points[2].x - base_width, points[2].x, points[3].y, points[3].x, points[3].x); } else @@ -764,7 +764,7 @@ draw_rectangle (PangoRenderer *renderer, points[1].y, points[1].x - base_width, points[1].x, points[2].y, points[2].x, points[2].x + base_width); pango_renderer_draw_trapezoid (renderer, part, /* C */ - points[2].y, points[2].x, points[2].x + base_width, + points[2].y, points[2].x, points[2].x + base_width, points[3].y, points[3].x, points[3].x); } } @@ -808,7 +808,7 @@ pango_renderer_draw_error_underline (PangoRenderer *renderer, { g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer)); g_return_if_fail (renderer->active_count > 0); - + PANGO_RENDERER_GET_CLASS (renderer)->draw_error_underline (renderer, x, y, width, height); } @@ -818,7 +818,7 @@ pango_renderer_draw_error_underline (PangoRenderer *renderer, * / \ / \ / \ / \ / \ | * \ \ /\ \ / / \ \ /\ \ | * \ \/B \ \/ C / \ \/B \ \ | height = HEIGHT_SQUARES * square - * \ A \ /\ A \ / \ A \ /\ A \ | + * \ A \ /\ A \ / \ A \ /\ A \ | * \ \/ \ \/ \ \/ \ \ | * \ / \ / \ / \ / | * \/ \/ \/ \/ - @@ -829,15 +829,15 @@ pango_renderer_draw_error_underline (PangoRenderer *renderer, * are axis aligned rectangles. (If fonts were square, the diagrams * would be clearer) * - * (0,0) - * /\ /\ - * / \ / \ - * /\ /\ /\ / - * / \/ \/ \/ - * / \ /\ / - * Y axis \/ \/ - * \ /\ - * \/ \ + * (0,0) + * /\ /\ + * / \ / \ + * /\ /\ /\ / + * / \/ \/ \/ + * / \ /\ / + * Y axis \/ \/ + * \ /\ + * \/ \ * \ X axis * * Note that the long side in this coordinate system is HEIGHT_SQUARES + 1 @@ -848,7 +848,7 @@ pango_renderer_draw_error_underline (PangoRenderer *renderer, * either HEIGHT_SQUARES=3 (a little long and skinny) or * HEIGHT_SQUARES=2 (a bit short and stubby) */ - + #define HEIGHT_SQUARES 2.5 static void @@ -938,7 +938,7 @@ pango_renderer_default_draw_error_underline (PangoRenderer *renderer, * @y2: Y coordinate of bottom of trapezoid * @x12: X coordinate of left end of bottom of trapezoid * @x22: X coordinate of right end of bottom of trapezoid - * + * * Draws a trapezoid with the parallel sides aligned with the X axis * using the given #PangoRenderer; coordinates are in device space. * @@ -956,7 +956,7 @@ pango_renderer_draw_trapezoid (PangoRenderer *renderer, { g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer)); g_return_if_fail (renderer->active_count > 0); - + if (PANGO_RENDERER_GET_CLASS (renderer)->draw_trapezoid) PANGO_RENDERER_GET_CLASS (renderer)->draw_trapezoid (renderer, part, y1_, x11, x21, @@ -970,7 +970,7 @@ pango_renderer_draw_trapezoid (PangoRenderer *renderer, * @glyph: the glyph index of a single glyph * @x: X coordinate of left edge of baseline of glyph * @y: Y coordinate of left edge of baseline of glyph - * + * * Draws a single glyph with coordinates in device space. * * Since: 1.8 @@ -984,10 +984,10 @@ pango_renderer_draw_glyph (PangoRenderer *renderer, { g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer)); g_return_if_fail (renderer->active_count > 0); - + if (glyph == PANGO_GLYPH_EMPTY) /* glyph PANGO_GLYPH_EMPTY never renders */ return; - + if (PANGO_RENDERER_GET_CLASS (renderer)->draw_glyph) PANGO_RENDERER_GET_CLASS (renderer)->draw_glyph (renderer, font, glyph, x, y); } @@ -995,7 +995,7 @@ pango_renderer_draw_glyph (PangoRenderer *renderer, /** * pango_renderer_activate: * @renderer: a #PangoRenderer - * + * * Does initial setup before rendering operations on @renderer. * pango_renderer_deactivate() should be called when done drawing. * Calls such as pango_renderer_draw_layout() automatically @@ -1022,7 +1022,7 @@ pango_renderer_activate (PangoRenderer *renderer) /** * pango_renderer_deactivate: * @renderer: a #PangoRenderer - * + * * Cleans up after rendering operations on @renderer. See * docs for pango_renderer_activate(). * @@ -1033,7 +1033,7 @@ pango_renderer_deactivate (PangoRenderer *renderer) { g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer)); g_return_if_fail (renderer->active_count > 0); - + if (renderer->active_count == 1) { if (PANGO_RENDERER_GET_CLASS (renderer)->end) @@ -1047,7 +1047,7 @@ pango_renderer_deactivate (PangoRenderer *renderer) * @renderer: a #PangoRenderer * @part: the part to change the color of * @color: the new color or %NULL to unset the current color - * + * * Sets the color for part of the rendering. * * Since: 1.8 @@ -1068,7 +1068,7 @@ pango_renderer_set_color (PangoRenderer *renderer, return; pango_renderer_part_changed (renderer, part); - + if (color) { renderer->priv->color_set[part] = TRUE; @@ -1084,9 +1084,9 @@ pango_renderer_set_color (PangoRenderer *renderer, * pango_renderer_get_color: * @renderer: a #PangoRenderer * @part: the part to get the color for - * + * * Gets the current rendering color for the specified part. - * + * * Return value: the color for the specified part, or %NULL * if it hasn't been set and should be inherited from the * environment. @@ -1099,7 +1099,7 @@ pango_renderer_get_color (PangoRenderer *renderer, { g_return_val_if_fail (PANGO_IS_RENDERER_FAST (renderer), NULL); g_return_val_if_fail (IS_VALID_PART (part), NULL); - + if (renderer->priv->color_set[part]) return &renderer->priv->color[part]; else @@ -1110,7 +1110,7 @@ pango_renderer_get_color (PangoRenderer *renderer, * pango_renderer_part_changed: * @renderer: a #PangoRenderer * @part: the part for which rendering has changed. - * + * * Informs Pango that the way that the rendering is done * for @part has changed in a way that would prevent multiple * pieces being joined together into one drawing call. For @@ -1134,7 +1134,7 @@ pango_renderer_part_changed (PangoRenderer *renderer, g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer)); g_return_if_fail (IS_VALID_PART (part)); g_return_if_fail (renderer->active_count > 0); - + handle_line_state_change (renderer, part); if (PANGO_RENDERER_GET_CLASS (renderer)->part_changed) @@ -1145,7 +1145,7 @@ pango_renderer_part_changed (PangoRenderer *renderer, * pango_renderer_prepare_run: * @renderer: a #PangoRenderer * @run: a #PangoLayoutRun - * + * * Set up the state of the #PangoRenderer for rendering @run. * * Since: 1.8 @@ -1155,7 +1155,7 @@ pango_renderer_prepare_run (PangoRenderer *renderer, PangoLayoutRun *run) { g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer)); - + PANGO_RENDERER_GET_CLASS (renderer)->prepare_run (renderer, run); } @@ -1175,33 +1175,33 @@ pango_renderer_default_prepare_run (PangoRenderer *renderer, for (l = run->item->analysis.extra_attrs; l; l = l->next) { PangoAttribute *attr = l->data; - + switch (attr->klass->type) { case PANGO_ATTR_UNDERLINE: renderer->underline = ((PangoAttrInt *)attr)->value; break; - + case PANGO_ATTR_STRIKETHROUGH: renderer->strikethrough = ((PangoAttrInt *)attr)->value; break; - + case PANGO_ATTR_FOREGROUND: fg_color = &((PangoAttrColor *)attr)->color; break; - + case PANGO_ATTR_BACKGROUND: bg_color = &((PangoAttrColor *)attr)->color; break; - + case PANGO_ATTR_UNDERLINE_COLOR: underline_color = &((PangoAttrColor *)attr)->color; break; - + case PANGO_ATTR_STRIKETHROUGH_COLOR: strikethrough_color = &((PangoAttrColor *)attr)->color; break; - + default: break; } @@ -1224,7 +1224,7 @@ pango_renderer_default_prepare_run (PangoRenderer *renderer, * @renderer: a #PangoRenderer * @matrix: a #PangoMatrix, or %NULL to unset any existing matrix. * (No matrix set is the same as setting the identity matrix.) - * + * * Sets the transformation matrix that will be applied when rendering. * * Since: 1.8 |