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Add cell size preview to dialog

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This commit is contained in:
Mario Hüttel 2018-12-22 20:54:02 +01:00
parent 4f9e5ca0b4
commit b5087769ee
3 changed files with 146 additions and 6 deletions
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38
glade/dialog.glade
View File

@ -4,7 +4,7 @@
<requires lib="gtk+" version="3.20"/>
<object class="GtkAdjustment" id="adjustment1">
<property name="lower">1</property>
<property name="upper">3000</property>
<property name="upper">4000</property>
<property name="value">1000</property>
<property name="step_increment">10</property>
<property name="page_increment">1000</property>
@ -69,6 +69,7 @@
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="adjustment">adjustment1</property>
<property name="fill_level">4000</property>
<property name="round_digits">0</property>
<property name="digits">0</property>
</object>
@ -108,7 +109,7 @@
</child>
<child>
<object class="GtkDrawingArea" id="shape-drawer">
<property name="height_request">100</property>
<property name="height_request">200</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
</object>
@ -118,5 +119,38 @@
<property name="position">6</property>
</packing>
</child>
<child>
<object class="GtkBox">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkLabel" id="x-label">
<property name="visible">True</property>
<property name="can_focus">False</property>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
<child>
<object class="GtkLabel" id="y-label">
<property name="visible">True</property>
<property name="can_focus">False</property>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">7</property>
</packing>
</child>
</object>
</interface>

100
widgets/conv-settings-dialog.c
View File

@ -39,12 +39,16 @@ struct _RendererSettingsDialog {
GtkWidget *scale;
GtkWidget *layer_check;
GtkWidget *standalone_check;
GtkDrawingArea *shape_drawing;
GtkLabel *x_label;
GtkLabel *y_label;
double cell_height;
double cell_width;
};
G_DEFINE_TYPE(RendererSettingsDialog, renderer_settings_dialog, GTK_TYPE_DIALOG)
static void renderer_settings_dialog_class_init(RendererSettingsDialogClass *klass)
{
/* No special code needed. Child cells are destroyed automatically due to reference counter */
@ -72,11 +76,59 @@ static void latex_render_callback(GtkToggleButton *radio, RendererSettingsDialog
hide_tex_options(dialog);
}
static gboolean shape_drawer_drawing_callback(GtkWidget *widget, cairo_t *cr, gpointer data)
{
int width;
int height;
GtkStyleContext *style_context;
GdkRGBA foreground_color;
RendererSettingsDialog *dialog = (RendererSettingsDialog *)data;
double usable_width;
double usable_height;
double height_scale;
double width_scale;
double final_scale_value;
style_context = gtk_widget_get_style_context(widget);
width = gtk_widget_get_allocated_width(widget);
height = gtk_widget_get_allocated_height(widget);
gtk_render_background(style_context, cr, 0, 0, width, height);
gtk_style_context_get_color(style_context, gtk_style_context_get_state(style_context),
&foreground_color);
gdk_cairo_set_source_rgba(cr, &foreground_color);
cairo_save(cr);
/* Tranform coordiante system */
cairo_scale(cr, 1, -1);
cairo_translate(cr, (double)width/2.0, -(double)height/2.0);
/* Define usable drawing area */
usable_width = (0.95*(double)width) - 15.0;
usable_height = (0.95*(double)height) - 15.0;
width_scale = usable_width/dialog->cell_width;
height_scale = usable_height/dialog->cell_height;
final_scale_value = (width_scale < height_scale ? width_scale : height_scale);
cairo_rectangle(cr, -dialog->cell_width*final_scale_value/2, -dialog->cell_height*final_scale_value/2,
dialog->cell_width*final_scale_value, dialog->cell_height*final_scale_value);
cairo_stroke(cr);
cairo_restore(cr);
return FALSE;
}
static void renderer_settings_dialog_init(RendererSettingsDialog *self)
{
GtkBuilder *builder;
GtkWidget *box;
GtkDialog *dialog;
char default_buff[100];
dialog = &(self->parent);
@ -89,12 +141,26 @@ static void renderer_settings_dialog_init(RendererSettingsDialog *self)
self->scale = GTK_WIDGET(gtk_builder_get_object(builder, "dialog-scale"));
self->standalone_check = GTK_WIDGET(gtk_builder_get_object(builder, "standalone-check"));
self->layer_check = GTK_WIDGET(gtk_builder_get_object(builder, "layer-check"));
self->shape_drawing = GTK_DRAWING_AREA(gtk_builder_get_object(builder, "shape-drawer"));
self->x_label = GTK_LABEL(gtk_builder_get_object(builder, "x-label"));
self->y_label = GTK_LABEL(gtk_builder_get_object(builder, "y-label"));
gtk_dialog_add_buttons(dialog, "Cancel", GTK_RESPONSE_CANCEL, "OK", GTK_RESPONSE_OK, NULL);
gtk_container_add(GTK_CONTAINER(gtk_dialog_get_content_area(dialog)), box);
gtk_window_set_title(GTK_WINDOW(self), "Renderer Settings");
g_signal_connect(self->radio_latex, "toggled", G_CALLBACK(latex_render_callback), (gpointer)self);
g_signal_connect(G_OBJECT(self->shape_drawing),
"draw", G_CALLBACK(shape_drawer_drawing_callback), (gpointer)self);
/* Default values */
self->cell_width = 1E-6;
self->cell_height = 1E-6;
snprintf(default_buff, sizeof(default_buff), "Width: %E", self->cell_width);
gtk_label_set_text(self->x_label, default_buff);
snprintf(default_buff, sizeof(default_buff), "Height: %E", self->cell_height);
gtk_label_set_text(self->y_label, default_buff);
g_object_unref(builder);
}
@ -155,9 +221,35 @@ void renderer_settings_dialog_set_settings(RendererSettingsDialog *dialog, struc
hide_tex_options(dialog);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(dialog->radio_cairo_svg), TRUE);
break;
}
}
void renderer_settings_dialog_set_cell_width(RendererSettingsDialog *dialog, double width)
{
if (!dialog)
return;
if (width == 0.0)
width = 1E-6;
if (width < 0.0)
width = -width;
dialog->cell_width = width;
}
void renderer_settings_dialog_set_cell_height(RendererSettingsDialog *dialog, double height)
{
if (!dialog)
return;
if (height == 0.0)
height = 1E-6;
if (height < 0.0)
height = -height;
dialog->cell_height = height;
}
/** @} */

14
widgets/conv-settings-dialog.h
View File

@ -75,6 +75,20 @@ void renderer_settings_dialog_set_settings(RendererSettingsDialog *dialog, struc
*/
void renderer_settings_dialog_get_settings(RendererSettingsDialog *dialog, struct render_settings *settings);
/**
* @brief renderer_settings_dialog_set_cell_width Set width for rendered cell
* @param dialog
* @param width Width in meters
*/
void renderer_settings_dialog_set_cell_width(RendererSettingsDialog *dialog, double width);
/**
* @brief renderer_settings_dialog_set_cell_height Set height for rendered cell
* @param dialog
* @param height Height in meters
*/
void renderer_settings_dialog_set_cell_height(RendererSettingsDialog *dialog, double height);
#endif /* __CONV_SETTINGS_DIALOG_H__ */
/** @} */